Anchor v1: send every test transaction as a v1 transaction

CHANGELOG.md

@@ -4,6 +4,47 @@ All notable changes to this repository are documented here.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
+## [2026-10-08] - Anchor v1 tests send v1 transactions
+
+Solana's v1 transaction format (SIMD-0385) activated on mainnet beta at epoch 1035
+(15 September 2026). It raises the transaction size limit from 1,232 to 4,096 bytes
+and moves the compute budget out of ComputeBudget instructions and into the message.
+Programs need no change for it; the client that builds the transaction does.
+
+### Changed
+
+- Every Anchor v1 example's tests send v1 transactions, through `solana-kite` 0.6.0,
+  whose senders and token, Token Extensions and transfer hook helpers all build v1.
+  The manifests move from kite 0.5.0 to 0.6.0.
+- A v1 transaction's unset limits are zero, not the legacy defaults, so kite 0.6
+  sets the compute unit and loaded-accounts data size limits in every transaction it
+  builds. Its senders and helpers take a new last argument,
+  `compute_unit_limit: Option<u32>`, and every call here passes `None`: kite
+  simulates the transaction and sends it with the compute units the simulation used.
+- The six tests that build a transaction themselves (to read logs, measure compute
+  units or read a program error code) build it with kite's
+  `build_transaction_from_instructions` and `get_transaction_config`, with
+  `MAX_COMPUTE_UNIT_LIMIT` from `solana-compute-budget`, and send it through LiteSVM.
+  The three compression examples add kite for this, and turn on `no-entrypoint` for
+  kite's `spl-token` and `spl-associated-token-account`, whose program entrypoints
+  otherwise clash with the example program's when the test binary links. They,
+  `hello-solana`, `options`
+  and `order-book` no longer use `solana-message` or `solana-transaction` directly,
+  and drop them from their manifests.
+
+### Added
+
+- `basics/transaction-v1/anchor-v1`: a program that stores a 3,000 byte document in
+  one instruction, which only fits in a v1 transaction. Its tests measure the
+  transaction against both size limits, set each config field themselves, and show
+  that an unset field means zero rather than the default.
+
+### Note
+
+- Anchor v2 and Quasar tests still send legacy transactions: `anchor-v2-testing`
+  pins LiteSVM 0.13.1 and `quasar-svm` is on a `solana-message` without the `v1`
+  module. Both predate v1.
+
 ## [2026-10-04] - Escrow: the taker signs the terms
 
 ### Fixed

CONTRIBUTING.md

@@ -35,6 +35,12 @@ Run an example's tests with the command for its framework, from the framework di
 
 - **Anchor v2** (in `anchor/`): `anchor test` (runs `cargo test`, per the `[scripts]` table in `Anchor.toml`), with the v2 CLI: `cargo install anchor-cli --version 2.0.0-rc.1 --locked`.
 - **Anchor v1** (in `anchor-v1/`): the same `anchor test`, with the v1 CLI: `avm install 1.2.0 && avm use 1.2.0`. Selecting the wrong CLI is the usual cause of a confusing build failure in these directories.
+  Anchor v1 tests send v1 transactions (4,096 bytes, resource limits in the message) through
+  `solana-kite` 0.6. Its senders take a last `compute_unit_limit: Option<u32>`: pass `None` and kite
+  simulates the transaction and sends it with the compute units the simulation used. A test that needs the
+  transaction's metadata (logs, compute units, a program error code) builds it with kite's
+  `build_transaction_from_instructions` and sends it through LiteSVM itself. Kite rejects ComputeBudget
+  instructions, which do nothing in a v1 transaction.
 - **Quasar:** `quasar test`.
 - **Native / Pinocchio:** `cargo test --manifest-path=./program/Cargo.toml` (build first with `cargo build-sbf --manifest-path=./program/Cargo.toml`).
 

README.md

@@ -197,6 +197,12 @@ Send SOL between two accounts.
 
 [⚓ Anchor v1](./basics/transfer-sol/anchor-v1) [⚓ Anchor v2](./basics/transfer-sol/anchor) [💫 Quasar](./basics/transfer-sol/quasar) [🤥 Pinocchio](./basics/transfer-sol/pinocchio) [🦀 Native](./basics/transfer-sol/native) [🧬 ASM](./basics/transfer-sol/asm)
 
+### Transaction v1
+
+Store a 3,000 byte document in one instruction using Solana's v1 transaction format, live on mainnet since September 2026: 4,096 bytes instead of 1,232, and a transaction config in the message in place of ComputeBudget instructions. The program needs no change for v1; the LiteSVM tests are what build the v1 transactions, and they show the config fields one by one.
+
+[⚓ Anchor v1](./basics/transaction-v1/anchor-v1)
+
 ### Pyth Price Feeds
 
 An **oracle** brings real-world market prices - a dollar, a stock, a token - [onchain](https://solana.com/docs/terminology#onchain), like a Bloomberg terminal feeding live quotes. [Pyth](https://pyth.network/) publishes low-latency prices from institutional sources, each in its own price feed account. This example reads a feed and logs its price, confidence interval, and exponent - the building block an AMM, lending market, or vault uses to value assets.
@@ -413,6 +419,10 @@ Yes. "Program" is Solana's term for what other chains call a smart contract: cod
 
 Start with the [escrow example](./finance/escrow/anchor/), the best first finance program to learn: one state PDA, one vault, and three instruction handlers that swap two tokens atomically. There is also a [30-minute video walkthrough](https://www.youtube.com/watch?v=B5eBWWQfQuM) building it from scratch.
 
+### Do these examples work with Solana transaction v1?
+
+Yes. The v1 format (4,096 byte transactions, live on mainnet since epoch 1035 on 15 September 2026) changes how a client builds a transaction, not what a program sees, so every program here can be called through v1 as is. Every Anchor v1 example's tests send their transactions as v1, through [solana-kite](https://crates.io/crates/solana-kite) 0.6, and the [transaction v1 example](./basics/transaction-v1/anchor-v1/) shows the config fields that replace ComputeBudget instructions. The Anchor v2 and Quasar tests still send legacy transactions, because their test harnesses run on virtual machines that predate v1.
+
 ### How do I test a Solana program without running a validator?
 
 Use [LiteSVM](https://www.anchor-lang.com/docs/testing/litesvm): Rust integration tests that run the program in-process, orders of magnitude faster than `solana-test-validator`. Every example in this repository tests this way, and `anchor init` scaffolds it by default since Anchor 1.0.

basics/account-data/anchor-v1/programs/anchor-program-example/Cargo.toml

@@ -27,7 +27,7 @@ litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
 borsh = "1.6.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/account-data/anchor-v1/programs/anchor-program-example/tests/test_account_data.rs

@@ -52,6 +52,7 @@ fn test_create_address_info() {
         vec![instruction],
         &[&payer, &address_info_keypair],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 

basics/checking-accounts/anchor-v1/programs/anchor-program-example/Cargo.toml

@@ -27,7 +27,7 @@ litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
 borsh = "1.6.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/checking-accounts/anchor-v1/programs/anchor-program-example/tests/test_checking_accounts.rs

@@ -34,6 +34,7 @@ fn test_check_accounts() {
         vec![create_account_ix],
         &[&payer, &account_to_change],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 
@@ -56,6 +57,7 @@ fn test_check_accounts() {
         vec![check_accounts_ix],
         &[&payer],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 }

basics/close-account/anchor-v1/programs/close-account/Cargo.toml

@@ -26,7 +26,7 @@ anchor-lang = "1.2.0"
 litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/close-account/anchor-v1/programs/close-account/tests/test_close_account.rs

@@ -41,7 +41,7 @@ fn test_create_and_close_user() {
         }
         .to_account_metas(None),
     );
-    send_transaction_from_instructions(&mut svm, vec![create_ix], &[&payer], &payer.pubkey())
+    send_transaction_from_instructions(&mut svm, vec![create_ix], &[&payer], &payer.pubkey(), None)
         .unwrap();
 
     // Verify account exists and has correct data
@@ -62,7 +62,7 @@ fn test_create_and_close_user() {
         }
         .to_account_metas(None),
     );
-    send_transaction_from_instructions(&mut svm, vec![close_ix], &[&payer], &payer.pubkey())
+    send_transaction_from_instructions(&mut svm, vec![close_ix], &[&payer], &payer.pubkey(), None)
         .unwrap();
 
     // Verify account is closed

basics/counter/anchor-v1/programs/counter_anchor/Cargo.toml

@@ -27,7 +27,7 @@ litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
 borsh = "1.6.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/counter/anchor-v1/programs/counter_anchor/tests/test_counter.rs

@@ -53,6 +53,7 @@ fn test_initialize_counter() {
         vec![instruction],
         &[&payer, &counter_keypair],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 
@@ -81,6 +82,7 @@ fn test_increment_counter() {
         vec![init_ix],
         &[&payer, &counter_keypair],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 
@@ -93,7 +95,8 @@ fn test_increment_counter() {
         }
         .to_account_metas(None),
     );
-    send_transaction_from_instructions(&mut svm, vec![inc_ix], &[&payer], &payer.pubkey()).unwrap();
+    send_transaction_from_instructions(&mut svm, vec![inc_ix], &[&payer], &payer.pubkey(), None)
+        .unwrap();
 
     let count = fetch_counter(&svm, &counter_keypair.pubkey());
     assert_eq!(count, 1, "Expected count to be 1");
@@ -120,6 +123,7 @@ fn test_increment_counter_again() {
         vec![init_ix],
         &[&payer, &counter_keypair],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 
@@ -133,8 +137,14 @@ fn test_increment_counter_again() {
             }
             .to_account_metas(None),
         );
-        send_transaction_from_instructions(&mut svm, vec![inc_ix], &[&payer], &payer.pubkey())
-            .unwrap();
+        send_transaction_from_instructions(
+            &mut svm,
+            vec![inc_ix],
+            &[&payer],
+            &payer.pubkey(),
+            None,
+        )
+        .unwrap();
         svm.expire_blockhash();
     }
 

basics/create-account/anchor-v1/programs/create-system-account/Cargo.toml

@@ -26,7 +26,7 @@ anchor-lang = "1.2.0"
 litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/create-account/anchor-v1/programs/create-system-account/tests/test_create_account.rs

@@ -35,6 +35,7 @@ fn test_create_the_account() {
         vec![instruction],
         &[&payer, &new_account],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 

basics/cross-program-invocation/anchor-v1/programs/hand/Cargo.toml

@@ -26,7 +26,7 @@ anchor-lang = "1.2.0"
 litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/cross-program-invocation/anchor-v1/programs/hand/tests/test_hand.rs

@@ -73,6 +73,7 @@ fn test_pull_lever_cpi() {
         vec![init_ix],
         &[&payer, &power_keypair],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 
@@ -96,7 +97,7 @@ fn test_pull_lever_cpi() {
         }
         .to_account_metas(None),
     );
-    send_transaction_from_instructions(&mut svm, vec![pull_ix], &[&payer], &payer.pubkey())
+    send_transaction_from_instructions(&mut svm, vec![pull_ix], &[&payer], &payer.pubkey(), None)
         .unwrap();
 
     // Verify power is now on
@@ -119,7 +120,7 @@ fn test_pull_lever_cpi() {
         }
         .to_account_metas(None),
     );
-    send_transaction_from_instructions(&mut svm, vec![pull_ix2], &[&payer], &payer.pubkey())
+    send_transaction_from_instructions(&mut svm, vec![pull_ix2], &[&payer], &payer.pubkey(), None)
         .unwrap();
 
     // Verify power is now off again

basics/cross-program-invocation/anchor-v1/programs/lever/Cargo.toml

@@ -26,7 +26,7 @@ anchor-lang = "1.2.0"
 litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/cross-program-invocation/anchor-v1/programs/lever/tests/test_lever.rs

@@ -42,6 +42,7 @@ fn test_initialize_lever() {
         vec![instruction],
         &[&payer, &power_keypair],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 
@@ -77,6 +78,7 @@ fn test_switch_power() {
         vec![init_ix],
         &[&payer, &power_keypair],
         &payer.pubkey(),
+        None,
     )
     .unwrap();
 
@@ -93,7 +95,7 @@ fn test_switch_power() {
         .to_account_metas(None),
     );
     svm.expire_blockhash();
-    send_transaction_from_instructions(&mut svm, vec![switch_ix], &[&payer], &payer.pubkey())
+    send_transaction_from_instructions(&mut svm, vec![switch_ix], &[&payer], &payer.pubkey(), None)
         .unwrap();
 
     assert!(
@@ -114,8 +116,14 @@ fn test_switch_power() {
         .to_account_metas(None),
     );
     svm.expire_blockhash();
-    send_transaction_from_instructions(&mut svm, vec![switch_ix2], &[&payer], &payer.pubkey())
-        .unwrap();
+    send_transaction_from_instructions(
+        &mut svm,
+        vec![switch_ix2],
+        &[&payer],
+        &payer.pubkey(),
+        None,
+    )
+    .unwrap();
 
     assert!(
         !read_power_is_on(&svm, &power_keypair.pubkey()),

basics/favorites/anchor-v1/programs/favorites/Cargo.toml

@@ -26,7 +26,7 @@ anchor-lang = {version = "1.2.0", features = ["init-if-needed"]}
 litesvm = "0.16.0"
 solana-signer = "3.0.0"
 solana-keypair = "3.0.1"
-solana-kite = "0.5.0"
+solana-kite = "0.6.0"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }

basics/favorites/anchor-v1/programs/favorites/tests/test_favorites.rs

@@ -89,8 +89,14 @@ fn test_set_favorites() {
         .to_account_metas(None),
     );
 
-    send_transaction_from_instructions(&mut svm, vec![instruction], &[&payer], &payer.pubkey())
-        .unwrap();
+    send_transaction_from_instructions(
+        &mut svm,
+        vec![instruction],
+        &[&payer],
+        &payer.pubkey(),
+        None,
+    )
+    .unwrap();
 
     let data = read_favorites(&svm, &pda);
     assert_eq!(data.number, 23);
@@ -123,8 +129,14 @@ fn test_update_favorites() {
         }
         .to_account_metas(None),
     );
-    send_transaction_from_instructions(&mut svm, vec![instruction], &[&payer], &payer.pubkey())
-        .unwrap();
+    send_transaction_from_instructions(
+        &mut svm,
+        vec![instruction],
+        &[&payer],
+        &payer.pubkey(),
+        None,
+    )
+    .unwrap();
 
     // Update favorites with new hobbies
     svm.expire_blockhash();
@@ -148,7 +160,7 @@ fn test_update_favorites() {
         }
         .to_account_metas(None),
     );
-    send_transaction_from_instructions(&mut svm, vec![update_ix], &[&payer], &payer.pubkey())
+    send_transaction_from_instructions(&mut svm, vec![update_ix], &[&payer], &payer.pubkey(), None)
         .unwrap();
 
     let data = read_favorites(&svm, &pda);

basics/hello-solana/anchor-v1/programs/hello-solana/Cargo.toml

@@ -25,8 +25,10 @@ anchor-lang = "1.2.0"
 [dev-dependencies]
 litesvm = "0.16.0"
 solana-signer = "3.0.0"
-solana-kite = "0.5.0"
-solana-transaction = "4.1.5"
+solana-kite = "0.6.0"
+# The named limit for the one transaction the test builds itself. Same version
+# solana-kite 0.6 builds against.
+solana-compute-budget = "4.2"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }